I've recently received a Latitude E6400. The battery is fine working, but I noticed the battery has a series of LED lights on it, and a charging indicator, which presumable should show the charge remaining. The battery charges OK but I never see these indicator lights display anything.
I've read various guides I downloaded for this laptop but can't find any information on the battery lights.
Does anyone know if these lights actually do anything? Is there a button somewhere to press? Perhaps the battery is faulty?
Thanks for any help.
If the computer is connected to an electrical outlet, the battery light operates as follows:
Battery Charge and Health
To check the battery charge, press and release the status button on the battery charge gauge to illuminate the charge-level lights. Each light represents approximately 20 percent of the total battery charge. For example, if four lights are on, the battery has 80 percent of its charge remaining. If no lights appear, the battery has no charge.
To check the battery health using the charge gauge, press and hold the status button on the battery charge gauge for at least 3 seconds. If no lights appear, the battery is in good condition and more than 80 percent of its original charge capacity remains. Each light represents incremental degradation. If five lights appear, less than 60 percent of the charge capacity remains, and you should consider replacing the battery.
Thankyou McSteamy. I hadn't realised that charge indicator symbol was actually a button! it's very difficult to push, as its so tiny, even with my little finger.
Anyway, thanks again.
==================================================Inspiron 15R LaptopIntel Core i3-370M (2.4GHz, 4 Threads, 3MB cache) CPU4GB Shared Dual Channel DDR3 RAM500GB 5400rpm HDD15.6 Inch High Definition (720p) LED Display with TrueLifeIntel HD GraphicsGenuine Windows 7 Home Premium, 64bitIntegrated 10/100 Network Card8X CD/DVD Burner (Dual Layer DVD+/-R Drive)Integrated High Definition Audio 2.2Dell Wireless 1501Integrated 1.3M Pixel Webcam6-Cell Lithium Ion Primary BatteryPA-12 65W Power Adaptor (19.5V, 3.34A)==================================================
The following factors affect battery performance:
Processor speed - Enabling features such as Intel SpeedStep® or AMD PowerNow!™ will extend battery life by automatically adjusting the processor speed to meet system demands. These features are typically enabled by default on computers that support them.
CD, DVD, CD-RW and hard drive access frequency - Moving files and programs directly to the hard drive, when possible, reduces the number of devices requiring battery power. Adding more memory can also help by reducing the need to use a swap file on the hard drive.
Programs - Running only the programs that are necessary reduces demands on the system processor and memory. Programs that cause intensive use of the processor and drives (such as playing a DVD movie or 3D games) can more than halve the amount of time that the computer can be used on battery power.
LCD brightness - Lowering the brightness of the LCD screen reduces the amount of power required by the screen.
Power management - Set the computer to enter suspend or hibernate when idle to conserve battery power when the computer is not being used.
Battery age - A battery's average life expectancy is 1 year. After this time, it is normal to experience a decrease in battery life.